Electronics-Lab.com Blog

Data logging GPS data on a SD card. Ktulu @ users.ininet.hu/ktulu writes:

Earlier this year I have bought on the flea market a used car GPS system, an Amstrad gp1000. (Un)fortunately it was so badly damaged, that it could not be repaired, so I thought I would reuse some parts from it. Then came the idea of building a portable GPS logger system.

The receiver runs perfectly from 3.3V, based on the NMEA V2. 2, 9600, 8, N, 1 protocol with a refresh rate of up to 1Hz and 16 channels. I’ve also reused the built in Li-polymer 1500mAh battery, some passive parts and connectors.

GPS to SD card data logger and compass - [Link]

John wrote in to show off his GPS/Geiger Counter Data Logger.

The enclosure is from Adafruit - about perfect, although it’s a pretty tight fit. The display is an OLED character display. (It’s a little quirky, and it draws more power than a regular LCD, but it’s really bright and clear.) The EM-406A GPS mounts on the top of the case. I drilled a small hole that shows the LED on the GPS module which lets me know when I have a fix. The IR detector is also on the top, so I can use a TV remote to set the parameters. The bottom has the on/off switch, (and now a piezo switch) and a slot that allows removal of the microSD card.

GPS Geiger Counter Data Logger - [Link]

Tools used:

• U-EC6 USB Emulator Debugger
• RF-2410M
• RF-2410U
• SHT11 Digital Humidity & Temperature Sensor
• Battery Holder
• Plastic Enclosure

Wireless USB Temperature & Humidity Datalogger - [Link]

Arup Basak writes: [via]

O.S.S.D.A.S v1 stands for Open Source Solar Data Acquisition System. I have been working on this project since last few months. The picture above is the not the first prototype, but the first working prototype that looks like quite complete. There will be further revisions to the hardware and software for best efficiency and accurate results. Moreover, the recorded digital data should be rich enough to reflect the real world data’s mirror.

Features:

• Logs everything into attached SD card for data analysis in PC. A typical 1GB SD card can store years of data. Data is recorded in frequency of few seconds. Enough to plot a graph to analyze performance of short periods of ten minutes too.
• Keep track of the solar panel voltage, battery voltage, charge current and other parameters
• Keeps track of other data such as temperature, etc
• Can work without the LCD and still record information to the SD card and vice versa.

Open Source Solar Data Acquisition System - [Link]

Build a lab-grade data logger with PIC microcontrolller and a 20-bit delta-sigma converter. Wichit Sirichote writes:

A new design of a lab-grade data logger has been developed using a PIC microcontroller and a 20-bit delta-sigma converter. The data logger provides 8-channel DC inputs and the optional digital inputs. The sampling interval can be programmed from 1min to 1Hr. The device uses a cheap memory card for data storage. In addition, the optional serial port also provides data stream for displaying real-time signal on the terminal.

G5 Data Logger - [Link]

LOG Storm – a new high-speed digital data logger for troubleshooting digital system buses – will be introduced at the DesignWest Conference in San Jose on March 27-9, 2012.

LOG Storm contains an 8 MSample memory buffer, enabling large bursts of data up to 20bits at 100 MHz to be sampled. A USB 2.0 connection is used to stream collected data to the PC, enabling Gigabytes of data storage.

LOG Storm’s most useful feature is its data filtering capability, efficiently storing only relevant data.

Benefits 

• always ON / always-recording
• advanced filtering / data storage qualification options
• huge 8 MSample local buffer in data logger hardware
• virtually unlimited data storage on your PC

LOG Storm High-Speed Digital Data Logger - [Link]

[via]

Designing a simple and cheap temperature logger @ Pick and Place blog… Some time ago, I was looking for a temperature logger. After checking what was available on the market and the prices, I decided to make one myself.

Designing a simple and cheap temperature logger – [Link]

Saelig Company, Inc. (www.saelig.com) has introduced a new version of the successful MSR145 miniature datalogger, now with storage capability for storing over one billion readings from temperature and other parameters simultaneously with 12-bit resolution. The award-winning, unique MSR145 mini datalogger, previously limited to only two million measurements, is now available with a slot for a removable microSD card (4GB). This increases the storage of the logger to a record-breaking 1 billion measurements. The MSR145ʼs SD card can be easily changed during on-going experiments, representing a significant benefit when undertaking extremely long-term measurements. This allows users to evaluate the saved data at any time, whenever it may be necessary.

MSR145 Universal Datalogger - [Link]

coolcircuit.com writes:

AVR Datalogger Zero is an AVR development board that is designed to experience data loggers. This board is designed by Chris Kern. It is mainly intended to help develop experience with technology useful for building data loggers, specifically sd card storage and ethernet connectivity. The board is designed for low power operation. Most onboard systems are powered by a 3.3v switching regulator.

AVR Datalogger Zero – [Link]

Kevin Timmerman build this ultra low power data logger that is powered from a single AA battery and is based on PIC18F27J53. When the MCP9700 temperature sensor is used with the 12 bit ADC, the resolution of measurement is 0.06 degree C. [via]

Ultra low power data logger – [Link]